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          <td class="headerValue" width="80%" colspan=4>mbi.info</td>
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          <td class="headerItem" width="20%">Date:</td>
          <td class="headerValue" width="20%">2010-01-23</td>
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          <td class="headerItem" width="20%">Instrumented&nbsp;lines:</td>
          <td class="headerValue" width="20%">14</td>
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          <td class="headerValue" width="20%">64.3 %</td>
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          <td class="headerValue" width="20%">9</td>
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      <td><pre class="source">
<span class="lineNum">       1 </span>                : //  (C) Copyright Gennadiy Rozental 2008.
<span class="lineNum">       2 </span>                : //  Distributed under the Boost Software License, Version 1.0.
<span class="lineNum">       3 </span>                : //  (See accompanying file LICENSE_1_0.txt or copy at 
<span class="lineNum">       4 </span>                : //  http://www.boost.org/LICENSE_1_0.txt)
<span class="lineNum">       5 </span>                : 
<span class="lineNum">       6 </span>                : //  See http://www.boost.org/libs/test for the library home page.
<span class="lineNum">       7 </span>                : //
<span class="lineNum">       8 </span>                : //  File        : $RCSfile$
<span class="lineNum">       9 </span>                : //
<span class="lineNum">      10 </span>                : //  Version     : $Revision: 49312 $
<span class="lineNum">      11 </span>                : //
<span class="lineNum">      12 </span>                : //  Description : contains definition for all test tools in test toolbox
<span class="lineNum">      13 </span>                : // ***************************************************************************
<span class="lineNum">      14 </span>                : 
<span class="lineNum">      15 </span>                : #ifndef BOOST_TEST_LAZY_OSTREAM_HPP_070708GER
<span class="lineNum">      16 </span>                : #define BOOST_TEST_LAZY_OSTREAM_HPP_070708GER
<span class="lineNum">      17 </span>                : 
<span class="lineNum">      18 </span>                : // Boost.Test
<span class="lineNum">      19 </span>                : #include &lt;boost/test/detail/config.hpp&gt;
<span class="lineNum">      20 </span>                : 
<span class="lineNum">      21 </span>                : // STL
<span class="lineNum">      22 </span>                : #include &lt;iosfwd&gt;
<span class="lineNum">      23 </span>                : 
<span class="lineNum">      24 </span>                : #include &lt;boost/test/detail/suppress_warnings.hpp&gt;
<span class="lineNum">      25 </span>                : 
<span class="lineNum">      26 </span>                : //____________________________________________________________________________//
<span class="lineNum">      27 </span>                : 
<span class="lineNum">      28 </span>                : // ************************************************************************** //
<span class="lineNum">      29 </span>                : // **************                  lazy_ostream                ************** //
<span class="lineNum">      30 </span>                : // ************************************************************************** //
<span class="lineNum">      31 </span>                : 
<span class="lineNum">      32 </span>                : namespace boost {
<span class="lineNum">      33 </span>                : 
<span class="lineNum">      34 </span>                : namespace unit_test {
<span class="lineNum">      35 </span>                : 
<span class="lineNum">      36 </span>                : class lazy_ostream {
<span class="lineNum">      37 </span>                : public:
<span class="lineNum">      38 </span><span class="lineCov">             13 :     static lazy_ostream&amp;    instance()                                              { static lazy_ostream inst; return inst; }</span>
<span class="lineNum">      39 </span>                : 
<span class="lineNum">      40 </span><span class="lineNoCov">              0 :     friend std::ostream&amp;    operator&lt;&lt;( std::ostream&amp; ostr, lazy_ostream const&amp; o ) { return o( ostr ); }</span>
<span class="lineNum">      41 </span>                : 
<span class="lineNum">      42 </span>                :     // access method
<span class="lineNum">      43 </span><span class="lineNoCov">              0 :     bool                    empty() const                                           { return m_empty; }</span>
<span class="lineNum">      44 </span>                : 
<span class="lineNum">      45 </span>                :     // actual printing interface; to be accessed only by this class and children
<span class="lineNum">      46 </span><span class="lineNoCov">              0 :     virtual std::ostream&amp;   operator()( std::ostream&amp; ostr ) const                  { return ostr; }</span>
<span class="lineNum">      47 </span>                : protected:
<span class="lineNum">      48 </span><span class="lineCov">             15 :     explicit                lazy_ostream( bool empty = true ) : m_empty( empty )    {}</span>
<span class="lineNum">      49 </span>                : 
<span class="lineNum">      50 </span>                :     // protected destructor to make sure right one is called
<span class="lineNum">      51 </span>                : #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x582))
<span class="lineNum">      52 </span>                : public:
<span class="lineNum">      53 </span>                : #endif
<span class="lineNum">      54 </span><span class="lineCov">             15 :     BOOST_TEST_PROTECTED_VIRTUAL ~lazy_ostream()                                    {}</span>
<span class="lineNum">      55 </span>                : 
<span class="lineNum">      56 </span>                : private:
<span class="lineNum">      57 </span>                :     // Data members
<span class="lineNum">      58 </span>                :     bool                    m_empty;
<span class="lineNum">      59 </span>                : };
<span class="lineNum">      60 </span>                : 
<span class="lineNum">      61 </span>                : //____________________________________________________________________________//
<span class="lineNum">      62 </span>                : 
<span class="lineNum">      63 </span>                : template&lt;typename T&gt;
<span class="lineNum">      64 </span><span class="lineCov">             13 : class lazy_ostream_impl : public lazy_ostream {</span>
<span class="lineNum">      65 </span>                : public:
<span class="lineNum">      66 </span><span class="lineCov">             13 :     lazy_ostream_impl( lazy_ostream const&amp; prev, T value )</span>
<span class="lineNum">      67 </span>                :     : lazy_ostream( false )
<span class="lineNum">      68 </span>                :     , m_prev( prev )
<span class="lineNum">      69 </span><span class="lineCov">             13 :     , m_value( value )</span>
<span class="lineNum">      70 </span><span class="lineCov">             13 :     {}</span>
<span class="lineNum">      71 </span>                : private:
<span class="lineNum">      72 </span><span class="lineNoCov">              0 :     virtual std::ostream&amp;   operator()( std::ostream&amp; ostr ) const</span>
<span class="lineNum">      73 </span>                :     {
<span class="lineNum">      74 </span><span class="lineNoCov">              0 :         return m_prev(ostr) &lt;&lt; m_value;</span>
<span class="lineNum">      75 </span>                :     }
<span class="lineNum">      76 </span>                : 
<span class="lineNum">      77 </span>                :     // Data members
<span class="lineNum">      78 </span>                :     lazy_ostream const&amp;     m_prev;
<span class="lineNum">      79 </span>                :     T                       m_value;
<span class="lineNum">      80 </span>                : };
<span class="lineNum">      81 </span>                : 
<span class="lineNum">      82 </span>                : //____________________________________________________________________________//
<span class="lineNum">      83 </span>                : 
<span class="lineNum">      84 </span>                : template&lt;typename T&gt;
<span class="lineNum">      85 </span>                : inline lazy_ostream_impl&lt;T const&amp;&gt;
<span class="lineNum">      86 </span><span class="lineCov">             13 : operator&lt;&lt;( lazy_ostream const&amp; prev, T const&amp; v )</span>
<span class="lineNum">      87 </span>                : {
<span class="lineNum">      88 </span><span class="lineCov">             13 :     return lazy_ostream_impl&lt;T const&amp;&gt;( prev, v );</span>
<span class="lineNum">      89 </span>                : }
<span class="lineNum">      90 </span>                : 
<span class="lineNum">      91 </span>                : //____________________________________________________________________________//
<span class="lineNum">      92 </span>                : 
<span class="lineNum">      93 </span>                : #if BOOST_TEST_USE_STD_LOCALE
<span class="lineNum">      94 </span>                : 
<span class="lineNum">      95 </span>                : template&lt;typename R,typename S&gt;
<span class="lineNum">      96 </span>                : inline lazy_ostream_impl&lt;R&amp; (BOOST_TEST_CALL_DECL *)(S&amp;)&gt;
<span class="lineNum">      97 </span>                : operator&lt;&lt;( lazy_ostream const&amp; prev, R&amp; (BOOST_TEST_CALL_DECL *man)(S&amp;) )
<span class="lineNum">      98 </span>                : {
<span class="lineNum">      99 </span>                :     return lazy_ostream_impl&lt;R&amp; (BOOST_TEST_CALL_DECL *)(S&amp;)&gt;( prev, man );
<span class="lineNum">     100 </span>                : }
<span class="lineNum">     101 </span>                : 
<span class="lineNum">     102 </span>                : //____________________________________________________________________________//
<span class="lineNum">     103 </span>                : 
<span class="lineNum">     104 </span>                : #endif
<span class="lineNum">     105 </span>                : 
<span class="lineNum">     106 </span>                : } // namespace unit_test
<span class="lineNum">     107 </span>                : 
<span class="lineNum">     108 </span>                : } // namespace boost
<span class="lineNum">     109 </span>                : 
<span class="lineNum">     110 </span>                : //____________________________________________________________________________//
<span class="lineNum">     111 </span>                : 
<span class="lineNum">     112 </span>                : #include &lt;boost/test/detail/enable_warnings.hpp&gt;
<span class="lineNum">     113 </span>                : 
<span class="lineNum">     114 </span>                : #endif // BOOST_TEST_LAZY_OSTREAM_HPP_070708GER
</pre>
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